Grass cube chair



FIG. 1 is a perspective view of a grass cube chair, constructed in accordance with the presently disclosed design;

FIG. 2 is a top plan view thereof, the opposite side (bottom) being a mirror image thereto;

FIG. 3 is a front elevation view thereof; the opposite side (back) being a mirror image thereto; and,

FIG. 4 is a side elevation view thereof, the opposite side being a mirror image thereto. 

The ornamental design for a grass cube chair, as shown and described. 